5.5 Reserved Words

The assembler handles the same strings as assembler directives and mnemonics as reserved words. These reserved words have special functions and they cannot be used as label names or symbol names in assembly-language files. They are not case-sensitive; for example, "ABS" and "abs" are the same reserved word.

Reserved words are classified into the following types.

(1)

Assembler directives

All assembler directives and all strings that begin with a period (.).

(2)

Mnemonics

All mnemonics of the RX Family.

(3)

Register and flag names

All register and flag names of the RX family.

(4)

Operators

All operators described in this section.

(5)

System labels

A system label is a name that begins with two periods and is generated by the assembler. All system labels are handled as reserved words.